Build docker image without Ledger support

[webmaster128]

In the Dockerfile we have this block twice:

# without this, build with LEDGER_ENABLED=false
RUN apk add libusb-dev linux-headers

and get some annoying build warnings like

go: downloading github.com/btcsuite/btcutil v1.0.2
go: downloading github.com/spf13/pflag v1.0.5
go: downloading github.com/gorilla/websocket v1.4.2
go: downloading github.com/zondax/hid v0.9.0
# github.com/zondax/hid
In file included from /go/pkg/mod/github.com/zondax/hid@v0.9.0/hid_enabled.go:22:
/usr/include/sys/poll.h:1:2: warning: #warning redirecting incorrect #include <sys/poll.h> to <poll.h> [-Wcpp]
    1 | #warning redirecting incorrect #include <sys/poll.h> to <poll.h>
      |  ^~~~~~~
go build -mod=readonly -tags netgo,ledger,muslc -ldflags '-X github.com/cosmos/cosmos-sdk/version.Name=wasm -X github.com/cosmos/cosmos-sdk/version.ServerName=wasmd -X github.com/cosmos/cosmos-sdk/version.ClientName=wasmcli -X github.com/cosmos/cosmos-sdk/version.Version=0.10.0-alpha-13-gebd9b29 -X github.com/cosmos/cosmos-sdk/version.Commit=ebd9b29ef7b51dd4cc89f09ff09ec403b09dbfa8 -X "github.com/cosmos/cosmos-sdk/version.BuildTags=netgo,ledger,muslc"' -trimpath -o build/wasmgovd ./cmd/wasmgovd
# github.com/zondax/hid
In file included from /go/pkg/mod/github.com/zondax/hid@v0.9.0/hid_enabled.go:22:
/usr/include/sys/poll.h:1:2: warning: #warning redirecting incorrect #include <sys/poll.h> to <poll.h> [-Wcpp]
    1 | #warning redirecting incorrect #include <sys/poll.h> to <poll.h>
      |  ^~~~~~~
go build -mod=readonly -tags netgo,ledger,muslc -ldflags '-X github.com/cosmos/cosmos-sdk/version.Name=wasm -X github.com/cosmos/cosmos-sdk/version.ServerName=wasmd -X github.com/cosmos/cosmos-sdk/version.ClientName=wasmcli -X github.com/cosmos/cosmos-sdk/version.Version=0.10.0-alpha-13-gebd9b29 -X github.com/cosmos/cosmos-sdk/version.Commit=ebd9b29ef7b51dd4cc89f09ff09ec403b09dbfa8 -X "github.com/cosmos/cosmos-sdk/version.BuildTags=netgo,ledger,muslc"' -trimpath -o build/wasmcli ./cmd/wasmcli
go: downloading github.com/rakyll/statik v0.1.6
go: downloading github.com/gorilla/handlers v1.4.2
# github.com/zondax/hid
In file included from /go/pkg/mod/github.com/zondax/hid@v0.9.0/hid_enabled.go:22:
/usr/include/sys/poll.h:1:2: warning: #warning redirecting incorrect #include <sys/poll.h> to <poll.h> [-Wcpp]
    1 | #warning redirecting incorrect #include <sys/poll.h> to <poll.h>
      |  ^~~~~~~

I wonder if we need ledger support at all in the default docker file. I assume CLI+Ledger users would compile their cli tools natively on the dev machine.

[ethanfrey]

Closed by #227